'Swear Falsely' in the Bible

And though they say, As Jehovah lives; surely they swear falsely.

Will you steal, murder, and commit adultery, and swear falsely, and burn incense to Baal, and walk after other gods whom you do not know;

Again, you have heard that it has been said to the ancients, "You shall not swear falsely, but you shall perform your oaths to the Lord."